Veteran sportsbook figure Rex Beyers bets his own dime on THE SWEATBOX, a service on YouTube, Twitch

Veteran sportsbook figure Rex Beyers bets his own dime on THE SWEATBOX, a service on YouTube, Twitch

LAS VEGAS — Stroll into this fourth-story abode, and a narrow kitchen to the left soon gives way to a field of fudge-colored carpet that might typically feature a dining table and massive sectional.Instead, straight ahead, a wide desk faces the two-story wall to the left that rises, à la a chalet, even higher via a vaulted ceiling. Against that wall, nine large flat screens show different college football games.The wings of that desk spread left…